Climate-change refugia in the sheltered bays of Palau: analogs of future reefs.
Climate-change refugia in the sheltered bays of Palau: analogs of future reefs.
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DOI：
10.1002/ece3.363
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发表时间：
2012-10
影响因子：
2.6
通讯作者：
Golbuu, Yimnang
中科院分区：
文献类型：
--
作者：
van Woesik, Robert;Houk, Peter;Isechal, Adelle L.;Idechong, Jacques W.;Victor, Steven;Golbuu, Yimnang
随着气候变化引发的热应激事件变得更加频繁，珊瑚白化和死亡率预计将增加。虽然许多研究记录了珊瑚漂白和死亡模式，但很少有研究检验偏离预期的热应激、珊瑚漂白和珊瑚死亡之间的正相关关系。这项研究考察了帕劳80个地点30,000个珊瑚群落在2010年地区性热应激事件中的反应。我们试图确定漂白的空间和分类性质，并检查是否有任何栖息地对热胁迫具有相对抗性。根据卫星得出的最高温度和高于长期平均水平的异常温度，西北部泻湖的漂白最为严重。Pocillopora种群遭受了最广泛的漂白和最高的死亡率。然而，在温度比其他地方高的海湾，漂白和死亡率都很低。珊瑚群落的组成、持续的高温暴露以及自然高悬浮颗粒物造成的高度垂直光衰减，缓解了2010年区域热应力事件对海湾珊瑚的影响。然而，近岸珊瑚礁也最容易受到土地利用变化的影响。因此，应该给予近岸珊瑚礁高度保护地位，因为随着海洋继续变暖，它们为珊瑚种群提供了避难所。
Coral bleaching and mortality are predicted to increase as climate change-induced thermal-stress events become more frequent. Although many studies document coral bleaching and mortality patterns, few studies have examined deviations from the expected positive relationships among thermal stress, coral bleaching, and coral mortality. This study examined the response of >30,000 coral colonies at 80 sites in Palau, during a regional thermal-stress event in 2010. We sought to determine the spatial and taxonomic nature of bleaching and examine whether any habitats were comparatively resistant to thermal stress. Bleaching was most severe in the northwestern lagoon, in accordance with satellite-derived maximum temperatures and anomalous temperatures above the long-term averages. Pocillopora populations suffered the most extensive bleaching and the highest mortality. However, in the bays where temperatures were higher than elsewhere, bleaching and mortality were low. The coral-community composition, constant exposure to high temperatures, and high vertical attenuation of light caused by naturally high suspended particulate matter buffered the corals in bays from the 2010 regional thermal-stress event. Yet, nearshore reefs are also most vulnerable to land-use change. Therefore, nearshore reefs should be given high conservation status because they provide refugia for coral populations as the oceans continue to warm.
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影响因子：
3.5
作者：
Bruno, JF;Siddon, CE;Toscano, MA
通讯作者：
Toscano, MA
影响因子：
5.8
作者：
Edwards, AJ;Clark, S;Rubens, J
通讯作者：
Rubens, J
影响因子：
64.8
作者：
Aronson, RB;Precht, WF;Murdoch, TJT
通讯作者：
Murdoch, TJT
影响因子：
4.9
作者：
Fabricius, KE;Mieog, JC;Van Oppen, MJH
通讯作者：
Van Oppen, MJH
影响因子：
3.7
作者：
Guest JR;Baird AH;Maynard JA;Muttaqin E;Edwards AJ;Campbell SJ;Yewdall K;Affendi YA;Chou LM
通讯作者：
Chou LM